Abstract:
A method is provided for use in a push to talk type service, in which a floor is required for a terminal to distribute media content to another terminal participating in a push to talk type session. In one aspect of the method, a single floor request message is sent (1) from PoC Client A to PoC Server S. The single floor request message relates to at least two different types of media content. The floor request message indicates, for at least one of the media types, how and/or the extent to which the allowance or denial of the request relating to that media type should affect and/or depend upon the request relating to at least one other media type. For example, the floor request message may indicate, for at least one of the media types, that if the request relating to that media type is denied then the request relating to any other media type should also be denied, i.e. that that media type is required. The floor request message may also indicate, for at least one of the media types, that the allowance or denial of the request relating to that media type should not affect the allowance or denial of the request relating to any other media type, i.e. that that media type is optional. Other conditions and relationships between the various media types in the request message can also be expressed. In another aspect, a plurality of floor request messages can be used, and treated together. The push to talk type service may be a push to talk over cellular service (PoC). The push to talk type service may be a conferencing service.
Abstract:
According to a first aspect of the present invention there is provided a method of establishing a Push-to-talk over Cellular (PoC) communication session between an inviting PoC client and at least one invited PoC client using an IP Multimedia Subsystem network. The method comprises using the pre-established session procedure to negotiate media parameters between the inviting PoC client and a participating PoC server for the inviting PoC client. At the inviting PoC client, sending a Talk Burst Control Protocol (TBCP) or Media Burst Control Protocol (MBCP) message directly to its participating PoC server, the TBCP or MBCP message containing the PoC address of the at least one invited PoC client. At said participating PoC Server, in response to receipt of the TBCP or MBCP message, generating a SIP INVITE message and sending the SIP INVITE message towards a participating PoC server for the at least one invited PoC client.
Abstract:
A method is disclosed for use in a Universal Mobile Telecommunications System network comprising an IP Multimedia Subsystem. The method comprises receiving node status information relating to a first node of the network which indicates an occurrence of an event associated with the first node, determining the existence of a network association established between the first node and a second node of the network that would be adversely affected by the occurrence of the event, and causing the network association to be terminated, thereby allowing a new network association between the first and second nodes to be established in its place.
Abstract:
A method is provided of including media content at least to some extent in a session invite procedure of a push to talk type service. A representation of the media content is sent (2) in a message inviting a second terminal (B) to establish a push to talk type session with a first terminal (A), with the media content itself being sent separately (5) following acceptance of the invitation, either automatically or on request. The representation is smaller than the media content itself. The media content may be received at the second terminal (B) as a background process. The representation, which can be displayed or played at the second terminal (B) for use in deciding whether or not to accept the invitation, may be a compressed or reduced-size or reduced-resolution version of the media content or an extract thereof. In one application, the invite message is an Invite message of the Session Initiation Protocol (SIP). The push to talk type service may be a push to talk over cellular service (PoC). The push to talk type service may be a conferencing service.
Abstract:
A method of Dual Radio Access Transfer of an IP Multimedia session, IMS, in an alerting phase for the Packet Switched to Circuit Switched direction. The method comprises initiating an IMS media session towards a terminating mobile station, UE and, during a session alerting phase, making a determination at the UE that a DRVCC transfer is required from a Packet Switched, PS, to a Circuit Switched, CS, access. The method comprises sending a SIP message from the UE to a Service Centralization and Continuity Application Server, SCC-AS, over the PS access, informing the SCC-AS of the DRVCC transfer, and responding to receipt of the SIP message at the SCC-AS by sending a SIP INVITE from the SCC-AS towards a Mobile Switching Centre, MSC, serving the UE in the CS access, the INVITE including an identity of the UE as a called party identity and the STN as the calling party identity. The method further comprises responding to receipt of said INVITE at the MSC, or to receipt of associated CS signalling, by sending from the MSC to the UE a CS Setup message, whereupon the MSC is placed in a state in which it expects a CS Answer from the UE.
Abstract:
The present invention relates to an arrangement in connection with supplementary services provided by different vendors, especially the interaction thereof, which supplementary services comprises appropriate standards and protocols, and for the purpose of giving the user a larger ability to influence the supplementary services in question, as well as improving the possibility for vendors to arrive at general standards which are more easy to interpret and which will reduce or eliminate the need of long interoperability tests, it is according to the present invention suggested to use Java as a new media channel, meaning that the arrangement further comprises means for the user to publish service information, advertisements and options to the remote user.
Abstract:
Un procedimiento para el uso en un servicio de tipo pulsar para hablar, en el que se requiere un canal para que un terminal distribuya contenido de medios a otro terminal que participe en una sesión de tipo pulsar para hablar, que comprende el envío de (1) un mensaje de solicitud de canal que se relaciona con al menos dos tipos de contenido de medios diferentes, caracterizado porque el mensaje de solicitud de canal indica, para al menos uno de los tipos de medios, cómo y/o en qué grado la aprobación o la denegación de la solicitud relativa a ese tipo de medios afecta y/o depende de la solicitud relativa a al menos otro tipo de medios.
Abstract:
A method is provided for use in a push to talk type service, in which a floor is required for a terminal to distribute media content to another terminal participating in a push to talk type session. In one aspect of the method, a single floor request message is sent (1) from PoC Client A to PoC Server S. The single floor request message relates to at least two different types of media content. The floor request message indicates, for at least one of the media types, how and/or the extent to which the allowance or denial of the request relating to that media type should affect and/or depend upon the request relating to at least one other media type. For example, the floor request message may indicate, for at least one of the media types, that if the request relating to that media type is denied then the request relating to any other media type should also be denied, i.e. that that media type is required. The floor request message may also indicate, for at least one of the media types, that the allowance or denial of the request relating to that media type should not affect the allowance or denial of the request relating to any other media type, i.e. that that media type is optional. Other conditions and relationships between the various media types in the request message can also be expressed. In another aspect, a plurality of floor request messages can be used, and treated together. The push to talk type service may be a push to talk over cellular service (PoC). The push to talk type service may be a conferencing service.